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Finding the Fourth Proportional to 15,944.22, 22,003.50 and 8,871.12

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Solution

The fourth proportional to 15,944.22, 22,003.50 and 8,871.12 is: 12,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,944.22 : 22,003.50 = 8,871.12 : x
  2. Step 2: Convert to fraction form
    15,944.22/22,003.50 = 8,871.12/x
  3. Step 3: Cross multiply
    15,944.22x = 22,003.50 × 8,871.12
  4. Step 4: Simplify right side
    15,944.22x = 195,195,688.92
  5. Step 5: Solve for x
    x = 195,195,688.92/15,944.22
  6. Step 6: Final answer
    x = 12,242.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.